---
id: CVE-2026-109564
title: >-
  LearnHouse before 1.4.0 contains a missing authorization vulnerability in POST
  /api/v1/playgrounds/{uuid}/duplicate that skips the read-access and draft
  checks enforced by get_playground
summary: >-
  LearnHouse before 1.4.0 contains a missing authorization vulnerability in POST
  /api/v1/playgrounds/{uuid}/duplicate that skips the read-access and draft
  checks enforced by get_playground. Authenticated users with playground
  creation righ…
severity: low
cvss: 3.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-862
published: '2026-10-12'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T17:17:28.640'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109564'
references:
  - url: 'https://github.com/learnhouse/learnhouse'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/learnhouse/learnhouse/commit/9a1319185a596ea9b40651dbfd96f05195c0be37
    label: disclosure@vulncheck.com
  - url: 'https://github.com/learnhouse/learnhouse/pull/1120'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/learnhouse-before-1.4.0-missing-authorization-via-playground-duplicate-endpoint
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.0019
epssPercentile: 0.08587
ingestedAt: '2026-10-12T22:05:40.359Z'
vendor: learnhouse
product: LearnHouse
affected:
  - LearnHouse < 1.4.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-13T15:48:40.620253Z'
---

## Overview

LearnHouse before 1.4.0 contains a missing authorization vulnerability in POST /api/v1/playgrounds/{uuid}/duplicate that skips the read-access and draft checks enforced by get_playground. Authenticated users with playground creation rights, such as Instructors, who know a RESTRICTED or unpublished playground UUID can copy its html_content and republish it publicly.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.